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H. G. LARZELERE.

CONCRETE MOLD.

APPLICATION FILED DEC. 18. 1919.

1 ,3 1 3, 39 3 Patented Aug. 19, 1919.

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CONCRETE MOLD.

APPLICATION r1110 DEC. 18. 1918.

'1 ,3 13,393. Patented Aug. 19, 1919.

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A TTORNEYS ITED STATES PATENT OFFICE.

HERMAN e. LAnznLnnn, or NEWROGHE-LLE, NEw 'YGRK.

con'cnn'rnMoLn.

Specification of Letters I'atent.

Patented Aug. 19,, 1919.

n neation filed December 18, 1918. Serial No. 267,272.

To all whom it mag/concern: 7

Be it known that I, HERMAN GRANT LAR- ZELERE, a citizen of the United States, and a resident of New Rochelle, in the county; of Westchester and State of New York, have invented certain new and useful Improve- 'ments in Goncrete Molds, of which the follightnessof the parts whereby. they can be handled by the workmen.

Another and'important object ofthe invention consists in providinq an exposed portion on each of the wooden standards and on the inside of the form, sothat reinforcing rods and metalof various kinds can be temporarily nailed in place, said exposed portions being formed by rabbefting the inner vertical edges ofthe. standards .to make recesses for the reception of'parts of the form plates.

A further ob'ect of the invention is to provide a novel tie wire'tightening' mechanism I I :A f h r bject ofth in en n i 1 provide wooden'battens to be laid between superposed form plates to make tight compress'lonfj'oints and prevent fluid ce n'i'ent from leaki g- 5 Other objects and advantages will appear in the following specification, reference being had to the accompanying drawings in which f g Figure 1 is a side elevation showing a wall form partly set up, p

Fig. 2" 's a longitudinal section'of a wall takenthrough' a corner,"

Fig. 3 isa horizontal sect-ion substantially 0n the line 33 of Figll,

1 Fig. 4 is a perspective view of one of the tie wire tight'eners', V 7

Fig. 5 is a detail'per'spective view showing thewo'oden batten betweenjabutting or superposed form plates'mnd Figiitis a detail perspective view illustrating the use" of wooden deatste brace posed wooden 'seetion 12 to which serve to bind the the form plates, gles shown in Fig. 1. In f-carryingout my'i'nvent-ion, a plurallty of metal sockets l are nailed at evenly spaced intervals-toRwooden shoes 2, by driw instead of the metallic aning the nailskthreligh the holes 3 in the. 757' flanges 4 0t theso'ckets. The wooden shoes 2 may consistsimplyof scantlings that are laid upon the ground substantially as shown in Fig. 2. These shoes ferm no part of the wall and are removed; after the concrete hardens so that the improved form can be taken away.

A luralityet wooden postsfi are fitted in-the respective sockets as shown in Fig.

1. ,In "building up the form for the wall, 1

other posts are "added and joined by conplings 6.-. The standards of the. form are thus made. a I V The posts 5 are reduced at 7" at the lower is passed through eaehsocket and the end of the post seated therein,.and the boltis secured by apin 9. on the inner-edges of each post, provide 11 of the form plates, and an interiorly e11.-

parts of the reinforcing Iron 13' are nailed.

The-channel portions i l have nail holes angles -to be evenly'fitted' against the chantheform, plates 16, rivets or equivalent securing means are used. The parts of the form plates that overlap the channels 11,

rigid structure/ Wires 17 are used as auxiliary means to adjacefit'to'the 'posts. 'Tiewires 18' keep Vertical rabbets- 10' ends to'fitin-the sockets '1. A; plainbolt 8 recesses or seatsfforthe channel portions 14 throughwhich nails are driven into the 5 post '5'tosecure the channels'in place. .Parts of thehorizontal angles 15 that brace the form plates 16,,are-c1'1t away' to enable the nels 1'1 as'shown in 3.' In applying two together andmake a v the "standards froin' leaning outwardly under the influence of the pressure on the inside. One end'of each of thesewires is threaded throughan 'qpening 19 in either the ontsi'de or theineide post, and is then wrapped arounda in 20;; r I Bearing plates 20* sfippoi'fi the pin. A

look pin 21 is fitted through anypair of properly alining apertures in the plate 20' et the nght and the flange eat-t the pi it to be turned to forcibly wrap, the end of the wire 18, and thus the tie'wire' is "tight ened with only a remote possibility of A shallow groove 24 in the breaking it. post behind the vpin makes roomiorthe wire thereon It is to beobser'ved"that slot 25 in the winding pin enablestheend of the wire to be held.

ooden battens 26 -are inserted between abutting angles 15 ofsuperposed form plates; to make tight-compression joints. Grooves 27 are formed in -each"batten at thebase of' the exposed head,"to leave a space beneaththe horizontal parts of the angles; 15"- and the: batten." 'fAny leaking "cement =willrun into these-grooves'or spaces,

' quickly fill them and prevent further leakage from :the wall. Holes'28 arranged at any desired intervals, are used where addi tional tie wires are needed to'keep the wall forms from buckling. 7 i As an alternative measure, the wooden battens just described maybe-"omittedfand the abutting angles 1-5 drawn'together into tight ccontact by threading short pieces of wire'through alining holes 15!. Instead of employing metal angles 1-5 to stiffen the form platesf wooden'cleats 29 as in *Fig. 6

may be used'. Fig.6 also shows how the iformi'pla tes 1'6 may consist of wood instead of metal. It maybe desirable under certain circumstances to use wood instead of metal,

and the purposeof Fig. 6 is"therefore to illustrate thebmplbyment of this material well as the battens' 'to' brace "the j plates. Inthe; use 'of either; the" form-"plates are comparatively r light "and it be readily handled by the workmen' withoutj the "aid of niachinery to lift them'nl i= :"i- Briefiy summlng up' the important featuresof theinvention,the provision of the exposed=wooden section'12. of each post'is a-g'reafi'advantage ifiaflixing the reinforcing. rods. After the wall'ha'rdens the posts can be readily torn away, leaving the nails 1 Wvhich can-be'cut off. ,1 g

{The provision of wo'odenbattens between vertically superposed form plates makes for a tight joint. The mold isxcaused to bear tightly atthe :-joint -ofgreatest resistance. The" improved tightening arrangement for the tiewires,-makesit easy to tighten thewir'es*18, at the same timeavo'iding the com- -m'on danger of breaking these wir'es by excessivIe twisting.-

. While thec'onstructmn and arrangement ofthe concretefmold: is thatof a generally preferred form, obviouslymodifications and changes may be made without departing invention or """the bets on the inner vertical edges, to provide recesses and leave an exposed section to which reinforcing irons can be secured from the inside;

A; concrete mold, comprising a post having rabbets. on the inner vertical edges, to. ,provide recesses and leave an exposed section to which reinforcing irons can 'be secured from the" inside of the mold, form plates fitted against the exposed section and making a flush --surface onthe inside, and channels fitted in thereces'ses' and carrying the form plates. r f3/A concrete mold, comprisinga post having rabbetson the inner vertical edges, 'tofprovide recesses and leave an exposed section to which reinforcing irons can be secured from the inside of the mold, form plates'fitted against the exposed section and making a flush surface on the inside, 'chanbe fitted in alining holes to'retain the'wind- 1 1 'ingpin when turned the desired amount.

' 5; In a' coiicrete'mold, the combination of apainof vertically superposed form plates having'fabutting angle irons on the edges,

and an insertible batten to make a tight joint between the form plates, saidL-batten including ;an exposed head and having groovesat the base of the head to provide longitudinal spaces to receive leaking fluid I and prevent further leakage when the spaces i a 6, A concrete mold comprisingshoes laidon the ground,'socket's attached to the shoes at equal intervals, posts having reduced ends fitted'into the sockets,v.means for securing the ostsinhthe sockets, said posts having rabbets on the inner vertical edges to provide recesses and 'interiorly exposed nailing sections, a winding pin,supported transceive one end of a crosstie wire, meansembodied in; said pin enabling it to be turned and locked to various adjustments, a vplu- ;verse1y.; ofeach. post; and arranged to re -,ra1ity .of form plates; with channels arranged to be secured between the posts in l i the recesses and-,making flush surfaces with said nailing sections on-Jtheinside; horizontal bracing means for the formplates'inabutting angle irons to make tight com- .cluding angle ironson'abutting edges, and y insertible. battens i isecurablei between said pression joints and prevent the leakage of fluid from the inside.

7. A concrete mold, including a form post with vertical recesses arranged to leave an exposed nailing area on the inside of the mold, and form plates With strengthening means fitting into the recesses and adapted to be secured to adjacent parts of the post.

8. A concrete mold, including form plates with horizontal strengthening means including members at the edges arranged to be secured together and tie vertically superposed plates in erecting the mold, vertically disposed strengthening means on the vertical edges, and a form post with recesses arranged to leave an exposed nailing area on the inside of the mold, said recesses receiv- 7 ing the vertical strengthening means.

9. A concrete mold, including a pair of spaced form posts provided with opposed recesses leaving exposed nailing areas on the inside of the mold, form platesincluding reinforcing members arranged to occupy the recesses and obtain a flush surface on the inside, suitable means for securing said form plates to each of the form posts, and adjustable means mounted on one of the posts for creating tension in a tie wire anchored in the other post and extending to said adjusting means.

HERMAN Gr. LARZELERE.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

